In this study, ultrasonication-assisted calcium carbonate scale inhibition was investigated compared with a commercial antiscalant ATMP (amino tris(methyl phosphonic acid)). The effects of varying ultrasound amplitude, pH, and duration were evaluated. formation measured based on the concentration in solution after subjecting to different conditions. Scale deposits also characterized using scann...

the therapeutic potential of crude extracts of aerial parts (stem, leaves and flowers) of tridax procumbens was screened for in vitro antioxidant potential and alpha amylase inhibitory action. the crude hydro-methanolic, aqueous and petroleum ether extracts were obtained by percolation-maceration method using 50% methanol, double distilled water and petroleum ether as solvents. phytochemical sc...

one of the identified risk factors for anxiety disorders in adolescence and adulthood is inhibited behaviors in childhood. the present study sought to examine the relationship between behavioral inhibition with some of the internal (personal) and external (family environment) factors in a sample of preschool children in kindergartens. in a cross sectional study in 2009, data was collected troug...

An excellent high-temperature-resistant scale inhibitor, polyaspartic acid-prolineamide (PASP-Pro), was synthesized by polysuccinimide (PSI) and L-prolineamide (L-Pro), then characterized 1H-NMR FTIR analysis. The inhibition performance of PASP-Pro on CaCO3 precipitation studied at different temperatures through static tests; the same time, influence crystallization process investigated combini...

for the first time in the present study the effects of vanillin, vanillyl alcohol, vanillic acid, as well as the newly synthesized vanillin derivative, bis-vanillin, were investigated on the oxidation of dopamine hydrochloride by mushroom tyrosinase. among them, vanillin and bis-vanillin act as activators, while vanillyl alcohol and vanillic acid exhibited inhibitory effects, the ic50 values be...